The present paper describes a new occurrence of the species Brachyhypopomus draco in a wetland area of the Lagoa do Peixe National Park, state of Rio Grande do Sul, Brazil.

The present note records for the first time the gobiid fish Ctenogobius stigmaticus (Poey, 1860) at Patos Lagoon stuary, state of Rio Grande do Sul, southern Brazil. The known distribution of this species is therefore ...

Isopodos sao exemplos da transicao evolutiva dos crustaceos do mar para terra, existindo formas tipicamente aquaticas e formas tipicamente terrestres. Ligia exotica e dominante na regiao intertidal do Estuario da Lagoa dos ...

Neste trabalho são estudadas a variação na fecundidade e a abundância de fêmeas do siri-azul Callinectes sapidus Rathbun, 1896 no estuário da Lagoa dos Patos, Rio Grande do Sul, Brasil. Foram realizadas coletas junto à ...

Despite the importance of the pearl cichlid Geophagus brasiliensis for the aquarium fish trade worldwide and its wide distribution, many aspects of its biology, such as the relationships between its feeding ecology and ...

The dusky grouper, Mycteroperca marginata, is an important commercial marine fish that is currently considered an endangered species worldwide and listed as overexploited in Brazil. Although its reproductive biology has ...

The distribution and composition of phytoplankton assemblages were studied in the Nazaré submarine canyon, during an upwelling event, using high-performance liquid chromatography (HPLC) pigment analysis, complemented by ...

The barber goby Elacatinus figaro, native to the Brazilian Atlantic coast, is endangered due to over-exploitation by the ornamental industry. It is expected that once the technology for juvenile production is mastered, ...

This paper presents isotopic composition (d18O, d2H) of groundwater, lagoon water, and seawater collected in a coastal lagoon system in Southern Brazil as a tool to define groundwater sources within a permeable barrier ...

The hydrogen chromate anion (HCrO4), which is the predominant species in acidic solutions and solutions with low chromium concentration, was determined by capillary zone electrophoresis (CZE) using UV detection on-column ...

TELEMAC-2D, a two-dimensional depth-averaged finite element flow model, has been chosen for modelling the hydrodynamics of the Patos Lagoon during the 1998 El Ni*no event. The model is initially calibrated against measurements ...

Over the last ten years, catches of the pink shrimp Farfantepenaeus paulensis by artisanal fishermen in the Patos Lagoon Estuary (southern Brazil) have been decreasing. This has created economic and social problems for ...

Para determinar a viabilidade do cultivo de uma espécie, é importante o conhecimento dos fatores limitantes para sua produção. Conhecer a taxa de consumo de oxigênio pós-prandial pode auxiliar na determinação da freqüência ...

Franciscanas foram utilizadas como fonte de informação sobre a biodisponibilidade de cádmio em águas neríticas da Costa Sul do Brasil. Amostras de fígado, obtidas de 44 indivíduos capturados acidentalmente ao largo da ...

Although international protection has been granted since 1935, southern right whales have only recently shown signs of recovery, possibly due to anthropogenic factors. Off Brazil, illegal hunting of right whales occurred ...

O objetivo deste trabalho foi avaliar a eficácia da benzocaína e do eugenol como anestésicos para juvenis de Trachinotus marginatus. Foram testadas concentrações de 25, 50, 75, 100 e 150ppm de benzocaína e de 25, 37,5, 50, ...

The main objective of this study was to develop a statistical model for accurate estimates of relative growth. The method was based on identifying patterns of the residuals obtained from the Huxley’s allometric equation. ...

The first appraisal of butyltin (BT) contamination linked with imposex incidence in Peruvian coastal areas was performed in the present study. Imposex occurrence and BT levels in female bodies were analyzed in the rock ...

The diet and feeding of the cutlass¢shTrichiurus lepturus were studied based on analyses of the stomach contents of larvae, juveniles, and adults collected along the continental shelf and shelf break o¡ southern Brazil, ...